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[xfs crash] Kernel BUG at /fs/xfs/support/debug.c:57

To: xfs@xxxxxxxxxxx
Subject: [xfs crash] Kernel BUG at /fs/xfs/support/debug.c:57
From: Christian Fischer <Christian.Fischer@xxxxxxxxxxxxxxxxxxx>
Date: Mon, 27 Jul 2009 16:57:54 +0200
Organization: Eastern Graphics GmbH
User-agent: KMail/1.9.9
Hello,

we had the 4th xfs crash during the last 4 month on last friday.
Maybe someone of you can give me some hints to get out what happens here.

We have various XEN guests (gentoo amd64) running on two HP ProLiant DL360, 
both connected to a SUN Storedge 3300 SCSI storage. Except the boot 
partitions all disk space comes from the SUN storage via xen vscsi.

We got xfs_suspend of the data partition one time, probably lost of the root 
partition one time (no logfile entry), and xfs_errors like this one two 
times. sde1 is a data partition of 1.4TB.

We have problems on the fileserver only, all others runs well.
The mailserver runs well, file- and mailserver have the highest disk load.

All kernel versions (gentoo 2.6.18-xen-r12) and configurations are equal.

Thanks for any help
Christian



Jul 24 11:33:30 ganges Access to block zero: fs: <sde1> inode: 2550198361 
start_block : 0 start_off : 0 blkcnt : 0 extent-state : 0
Jul 24 11:33:30 ganges ----------- [cut here ] --------- [please bite 
here ] ---------
Jul 24 11:33:30 ganges Kernel BUG 
at ...sr/src/linux-2.6.18-xen-r12/fs/xfs/support/debug.c:57
Jul 24 11:33:30 ganges invalid opcode: 0000 [1] SMP
Jul 24 11:33:30 ganges CPU 0
Jul 24 11:33:30 ganges Modules linked in:
Jul 24 11:33:30 ganges Pid: 15340, comm: smbd Not tainted 2.6.18-xen-r12 #8
Jul 24 11:33:30 ganges RIP: e030:[<ffffffff8039383c>]  [<ffffffff8039383c>] 
cmn_err+0xdc/0x120
Jul 24 11:33:30 ganges RSP: e02b:ffff8800a4b2d5c8  EFLAGS: 00010246
Jul 24 11:33:30 ganges RAX: 0000000000000000 RBX: ffffffff8051cbf0 RCX: 
0000000000000001
Jul 24 11:33:30 ganges RDX: ffffffffff5fd000 RSI: 0000000000000000 RDI: 
ffffffff805826ac
Jul 24 11:33:30 ganges RBP: 0000000000000000 R08: 0000000000000000 R09: 
0000000000000080
Jul 24 11:33:30 ganges R10: ffffffff8062c4c0 R11: ffffffff80213660 R12: 
0000000000000000
Jul 24 11:33:30 ganges R13: ffff8800f6a03bc0 R14: 0000000000000005 R15: 
0000000000000000
Jul 24 11:33:30 ganges FS:  00002ac859d276a0(0000) GS:ffffffff805e7000(0000) 
knlGS:0000000000000000
Jul 24 11:33:30 ganges CS:  e033 DS: 0000 ES: 0000
Jul 24 11:33:30 ganges Process smbd (pid: 15340, threadinfo ffff8800a4b2c000, 
task ffff880011892850)
Jul 24 11:33:30 ganges Stack:  0000003000000030 ffff8800a4b2d6c8 
ffff8800a4b2d5e8 000000000000b5a0
Jul 24 11:33:30 ganges 00000002000001bc ffffffff80367438 ffff8800ff7ecfc0 
000000009800f059
Jul 24 11:33:30 ganges 0000000000000000 0000000000000000 ffff8800e6d8ca30 
ffff8800a4b2d8b8
Jul 24 11:33:30 ganges Call Trace:
Jul 24 11:33:30 ganges [<ffffffff80367438>] xfs_iext_bno_to_ext+0x138/0x160
Jul 24 11:33:30 ganges [<ffffffff80366dd3>] xfs_iext_get_ext+0x43/0x70
Jul 24 11:33:30 ganges [<ffffffff80348c4d>] 
xfs_bmap_search_multi_extents+0xad/0x120
Jul 24 11:33:30 ganges [<ffffffff80348d8e>] xfs_bmap_search_extents+0xce/0xf0
Jul 24 11:33:30 ganges [<ffffffff80349201>] xfs_bmapi+0x2f1/0x1cf0
Jul 24 11:33:30 ganges [<ffffffff8020aaef>] error_exit+0x0/0x71
Jul 24 11:33:30 ganges [<ffffffff8036d61e>] xfs_iomap_write_delay+0x30e/0x490
Jul 24 11:33:30 ganges [<ffffffff80209426>] __switch_to+0x3e6/0x560
Jul 24 11:33:30 ganges [<ffffffff8036cc78>] xfs_iomap+0x228/0x570
Jul 24 11:33:30 ganges [<ffffffff803884fb>] __xfs_get_blocks+0x7b/0x200
Jul 24 11:33:30 ganges [<ffffffff8027df19>] alloc_page_buffers+0xa9/0x110
Jul 24 11:33:30 ganges [<ffffffff8027f074>] __block_prepare_write+0x1d4/0x490
Jul 24 11:33:30 ganges [<ffffffff803886a0>] xfs_get_blocks+0x0/0x10
Jul 24 11:33:30 ganges [<ffffffff8027f34a>] block_prepare_write+0x1a/0x30
Jul 24 11:33:30 ganges [<ffffffff802567f8>] 
generic_file_buffered_write+0x288/0x680
Jul 24 11:33:30 ganges [<ffffffff804a7dbe>] tcp_rcv_established+0x49e/0x7a0
Jul 24 11:33:30 ganges [<ffffffff8047a268>] memcpy_toiovec+0x38/0x70
Jul 24 11:33:30 ganges [<ffffffff8023346b>] current_fs_time+0x3b/0x40
Jul 24 11:33:30 ganges [<ffffffff803ad561>] __up_write+0x21/0x120
Jul 24 11:33:30 ganges [<ffffffff803917d3>] xfs_write+0x7a3/0xb40
Jul 24 11:33:30 ganges [<ffffffff804a05db>] tcp_recvmsg+0x76b/0x8a0
Jul 24 11:33:30 ganges [<ffffffff8047190b>] do_sock_read+0xab/0xc0
Jul 24 11:33:30 ganges [<ffffffff8047217f>] sock_aio_read+0x4f/0x60
Jul 24 11:33:30 ganges [<ffffffff8038d3cf>] xfs_file_aio_write+0x6f/0x80
Jul 24 11:33:30 ganges [<ffffffff8027b9d7>] do_sync_write+0xc7/0x110
Jul 24 11:33:30 ganges [<ffffffff8028ee43>] fasync_helper+0x63/0x150
Jul 24 11:33:30 ganges [<ffffffff80293089>] __posix_lock_file_conf+0x3d9/0x430
Jul 24 11:33:30 ganges [<ffffffff80244970>] autoremove_wake_function+0x0/0x30
Jul 24 11:33:30 ganges [<ffffffff80293cc6>] fcntl_setlk+0x286/0x2c0
Jul 24 11:33:30 ganges [<ffffffff8027c3cd>] vfs_write+0xbd/0x180
Jul 24 11:33:30 ganges [<ffffffff8027cc1d>] sys_pwrite64+0x5d/0x90
Jul 24 11:33:30 ganges [<ffffffff8020a3b0>] system_call+0x68/0x6d
Jul 24 11:33:30 ganges [<ffffffff8020a348>] system_call+0x0/0x6d
Jul 24 11:33:30 ganges
Jul 24 11:33:30 ganges
Jul 24 11:33:30 ganges Code: 0f 0b 68 f0 f7 51 80 c2 39 00 eb 2b 48 c7 c6 a6 
3a 52 80 48
Jul 24 11:33:30 ganges RIP  [<ffffffff8039383c>] cmn_err+0xdc/0x120
Jul 24 11:33:30 ganges RSP <ffff8800a4b2d5c8>

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